Remove pseudo targets for building shared libs

Thanks to the change "build: support library builds via lib/<libname>",
shared libraries can now be built directly by the build system.

Issue #4599

repos/pc/run/intel_fb.run

@@ -24,7 +24,7 @@ set build_components {
 	server/report_rom
 	server/vfs
 	server/fs_rom
-	lib/vfs/import
+	lib/vfs_import
 }
 
 

repos/pc/run/wifi.run

@@ -71,9 +71,9 @@ set build_components {
 	server/dynamic_rom
 	server/nic_router
 	test/lwip/http_srv
-	lib/vfs/wifi
-	lib/vfs/jitterentropy
-	lib/vfs/lwip
+	lib/vfs_wifi
+	lib/vfs_jitterentropy
+	lib/vfs_lwip
 }
 
 source ${genode_dir}/repos/base/run/platform_drv.inc

repos/pc/src/lib/vfs/wifi/target.mk

@@ -1,3 +0,0 @@
-LIBS := vfs_wifi
-
-BUILD_ARTIFACTS :=